Plebejus tancrei Graeser, 1888 (= Lycaeides tancrei).

Range: East Siberia, the lower Amurland, Kamchatka.

ssp.: verkhojanicus (Kurentzov, 1970); range: the northern E Siberia, including the Ochot Sea coast.

A male; wings closed; on its probable foodlpant Oxytropis czukotica Jurtz.

A flowery slope of the coastal terrace at the Burgauli River mouth on the southern coast of the Koni Peninsula, Ola District, S Magadan Province, Russia. 17th July, 1989. Oleg Kosterin.